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Ericsson sold more than 2,000 patents to a patent troll suing Apple, Google and RIM

Noted patent troll Unwired Planet made news last year when it filed patent infringement complaints against Apple (AAPL), Google (GOOG) and Research in Motion (RIMM). In an effort to beef up its portfolio, the company has now purchased more than 2,000 patents from Ericsson (ERIC) that will help it continue to pursue legal actions against a number of smartphone and tablet manufacturers. Ericsson will transfer 2,185 U.S and international patents and patent applications to Unwired Planet, a majority of which relate to 2G, 3G and LTE technologies. Under the terms of the agreement, Ericsson will also contribute 100 additional patents to the company annually beginning in 2014 and continuing through 2018. In return, Ericsson will have access to Unwired Planet’s patent portfolio and has also received an undisclosed compensation fee. Mike Mulica, chief executive of Unwired Planet, said the company looks “forward to leveraging a strong, multi-dimensional patent portfolio and furthering discussions with key industry players who are interested in licensing these inventions to protect and further build their product strategies.”